I will definitely summarize my experiences on #37C3 later, now recovering from some pretty nasty tonsillitis (but fortunately bacterial, because antibiotics are working), but I am on over a dozen similar events in the year (conventions, conferences etc.) and I must say, I like it when on the event you have 100% of your available time spent on some interesting activities and still have a fear of missing out. Which was my experience during that four days